Evaluation of the energy calibration of diamond detectors for fast neutrons applications
The radiation hardness, the chemical resistance, and the capabilities to operate at high temperature conditions make diamond detectors a good option for carrying out fast neutron measurements on fusion plasma experiments or facilities using accelerator-driven neutron sources. A correct energy calibr...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | EPJ Web of Conferences |
| Subjects: | |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2023/14/epjconf_animma2023_03006.pdf |
| _version_ | 1797344006012665856 |
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| author | Gandolfo Giada Lepore Luigi Cherubini Nadia Piccinelli Ermanno Marzo Giuseppe Augusto |
| author_facet | Gandolfo Giada Lepore Luigi Cherubini Nadia Piccinelli Ermanno Marzo Giuseppe Augusto |
| author_sort | Gandolfo Giada |
| collection | DOAJ |
| description | The radiation hardness, the chemical resistance, and the capabilities to operate at high temperature conditions make diamond detectors a good option for carrying out fast neutron measurements on fusion plasma experiments or facilities using accelerator-driven neutron sources. A correct energy calibration of pulse-height spectra acquired through diamond detectors allows to perform fast neutron spectrometry. As a general rule, energy calibration of diamond detectors is performed using an alpha source, e.g. 239Pu, 241Am, 244Cm, whose characteristic emission energies are in the range from 5 to 6 MeV. Calibration at higher energies, such as those related to charged particles (about 8.4 MeV) produced by the 12C(n,alpha)9Be induced by fast neutrons coming from D-T fusion reaction, is traditionally extrapolated with the hypothesis of linearity for the energy calibration curve. In this work an evaluation of the diamond detector energy calibration based on alpha source emissions is performed at higher energies by means of a compact D-T neutron generator, able to produce neutrons within a broad energy range, by changing the accelerator voltage and the neutron emission angle. A relative deviation less than 2% between experimental and theoretical energies was observed, showing that the energy calibration through alpha sources could be still valid for fast neutrons coming from D-T fusion reactions. |
| first_indexed | 2024-03-08T10:56:03Z |
| format | Article |
| id | doaj.art-38ab3c016e614785afe519c36c0a6b33 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-03-08T10:56:03Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-38ab3c016e614785afe519c36c0a6b332024-01-26T16:33:48ZengEDP SciencesEPJ Web of Conferences2100-014X2023-01-012880300610.1051/epjconf/202328803006epjconf_animma2023_03006Evaluation of the energy calibration of diamond detectors for fast neutrons applicationsGandolfo Giada0Lepore Luigi1Cherubini Nadia2Piccinelli Ermanno3Marzo Giuseppe Augusto4ENEA, Fusion and Technology for Nuclear Safety and Security DepartmentENEA, Fusion and Technology for Nuclear Safety and Security DepartmentENEA, Fusion and Technology for Nuclear Safety and Security DepartmentENEA, Fusion and Technology for Nuclear Safety and Security DepartmentENEA, Fusion and Technology for Nuclear Safety and Security DepartmentThe radiation hardness, the chemical resistance, and the capabilities to operate at high temperature conditions make diamond detectors a good option for carrying out fast neutron measurements on fusion plasma experiments or facilities using accelerator-driven neutron sources. A correct energy calibration of pulse-height spectra acquired through diamond detectors allows to perform fast neutron spectrometry. As a general rule, energy calibration of diamond detectors is performed using an alpha source, e.g. 239Pu, 241Am, 244Cm, whose characteristic emission energies are in the range from 5 to 6 MeV. Calibration at higher energies, such as those related to charged particles (about 8.4 MeV) produced by the 12C(n,alpha)9Be induced by fast neutrons coming from D-T fusion reaction, is traditionally extrapolated with the hypothesis of linearity for the energy calibration curve. In this work an evaluation of the diamond detector energy calibration based on alpha source emissions is performed at higher energies by means of a compact D-T neutron generator, able to produce neutrons within a broad energy range, by changing the accelerator voltage and the neutron emission angle. A relative deviation less than 2% between experimental and theoretical energies was observed, showing that the energy calibration through alpha sources could be still valid for fast neutrons coming from D-T fusion reactions.https://www.epj-conferences.org/articles/epjconf/pdf/2023/14/epjconf_animma2023_03006.pdfdiamond detectorsfusion experimentsenergy calibrationfast neutrons |
| spellingShingle | Gandolfo Giada Lepore Luigi Cherubini Nadia Piccinelli Ermanno Marzo Giuseppe Augusto Evaluation of the energy calibration of diamond detectors for fast neutrons applications EPJ Web of Conferences diamond detectors fusion experiments energy calibration fast neutrons |
| title | Evaluation of the energy calibration of diamond detectors for fast neutrons applications |
| title_full | Evaluation of the energy calibration of diamond detectors for fast neutrons applications |
| title_fullStr | Evaluation of the energy calibration of diamond detectors for fast neutrons applications |
| title_full_unstemmed | Evaluation of the energy calibration of diamond detectors for fast neutrons applications |
| title_short | Evaluation of the energy calibration of diamond detectors for fast neutrons applications |
| title_sort | evaluation of the energy calibration of diamond detectors for fast neutrons applications |
| topic | diamond detectors fusion experiments energy calibration fast neutrons |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2023/14/epjconf_animma2023_03006.pdf |
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